System for determining set temperature of molten metal

A system for determining a set temperature of molten metal in a pouring facility, the pouring facility repeating a series of processing including receiving processing for causing a ladle to receive the molten metal generated by a melting furnace generating the molten metal of the set temperature, conveyance processing for conveying the ladle to a pouring machine, and pouring processing for sequentially pouring the molten metal in the ladle into a plurality of molds by the pouring machine, the system comprising:

• a temperature sensor configured to detect a molten metal temperature at a nozzle tip of the ladle during the pouring processing;
• and
• a control unit configured to acquire temperature transition obtained by plotting the molten metal temperature detected by the temperature sensor for each mold in each of the pouring processing, and to determine the set temperature, wherein
• in a case where the temperature transition falling within a temperature range determined by an upper limit temperature and a predetermined lower limit temperature is determined as an optimum temperature transition, the set temperature determined by the control unit satisfies relationship in which a temperature obtained by adding the upper limit temperature and a drop temperature becomes the set temperature, the upper limit temperature being determined to cause a percentage of a number of optimum temperature transitions included in a plurality of acquired temperature transitions in a number of the plurality of acquired temperature transitions to become a predetermined percentage, the drop temperature being a temperature dropped during the conveyance processing.